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Income Taxes - Additional Information Regarding Examinations (Detail) - USD ($) $ in Billions	3 Months Ended		12 Months Ended
	Sep. 30, 2022	Dec. 31, 2020	Jun. 30, 2018	Jun. 30, 2016	Jun. 30, 2011
Earliest Tax Year | Foreign Country
Income Tax Examination [Line Items]
Tax years subject to examination	1996
Latest Tax Year | Foreign Country
Income Tax Examination [Line Items]
Tax years subject to examination	2022
Internal Revenue Service (IRS)
Income Tax Examination [Line Items]
Settlement payments including tax and interest		$ 1.7
Internal Revenue Service (IRS) | Earliest Tax Year
Income Tax Examination [Line Items]
Tax years under audit		2004	2010	2007	2004
Tax years subject to examination	2004
Internal Revenue Service (IRS) | Latest Tax Year
Income Tax Examination [Line Items]
Tax years under audit		2013	2013	2009	2006
Tax years subject to examination	2017

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Tax year being audited in the income tax examination, in YYYY format.

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Tax year that remains open to examination under enacted tax laws, in YYYY format.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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